Improvement in lubricators



UNITED STATES PATENT OFFICE.

JOHN GATES, OF PORTLAND, OREGON.

IMPROVEMENT lN LUBRICATORS.

Specification forming part of Letters Patent No. 138,243, dated April29, 1873; application tiled August. 23, 1872.

To all whom, it may concern:

Be it known that I, JOHN GATES, of Portland, in the State of Oregon,have invented a new and useful Lubricator; and I do hereby declare thatthe following is a full and exact description of the same, referencebeing had to the accompanying drawing and to the let-V ters of referencemarked thereon.

Vllhis invention consists mainly, first, in a peculiar method of feedingoil, the same being delivered from the oil-reservoir through a body ofwater inclosed in a glass chamber, by which means its delivery can bereadily observed and accordingly regulated; second, in the combinationof an oil-chamber with a water-chamber, the former being located overthe latter, andadapted to receive oil from it and deliver the samethrough the body of Water to the feed-cocks; third, in a lubrieatorhaving an oil and water chamber, arranged as described, and also awater-induction pipe, and oil-delivery pipes, the employment of two infdependent passages connecting the oil land water chambers for thepurpose of adapting the lubricator for periodical feeding. It furtherconsists in certain details of construction, which, in connection withthe foregoing, will be fully described hereinafter.

In the drawing, Figures l and 2 represent central sectional elevationsof my improved lubricator, Fig. 1 being adapted for continuous feedingonly, and Fig. 2 for continuous or periodical feeding, as maybe desired.Fig. 3 represents a transverse horizontal section through the line x,Fig. l; and Fig. 4 represents a similar view through the line y y, Fig.2.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe fully its construction and manner of operation.

A represents a cylindrical oil-chamber made of any suitable material,the lower end of which is closed by a screw-cap provided with'a waste-.cock, B, and the upper end by screwing it into the bottom of a metalpan or dish, C, which is used in connection with the screw-plug D infilling the chamber A with oil, and is also intended to receive any dripor leakagefrom the feeding=cocks P Q situated above it. Cast upon thispan or dish is a circular iiange, E, by means of which the instrument isrmly se ber, as shown.

cured to a bracket or table, while the chamber A depends below itthrough a vsuitable center of the drip-pau C directly over the oil-` Theupper end of the glass cylinchamber. der is closedby a metal cap, H,andthejoints being suitably packed the wholeis held firmly together by acentral bolt, I, the lower end of which is screwed into the metal ofAthe stand Gf A small passage, K, extends longitudinally through thestand G, and connects the oil-chamber A with the glass chamber above.Another passage, J, communicates with the induction-pipe Land opens intotheoil-chamr[The bolt I`is hollow from its lower end.` upward to thepoint N, at which there is a hole in theside of the bolt, by means ofwhich a communication isestablished between the upper part ofthe glasschamber and the small chamber O, into which the lower end of the saidbolt is screwed. VThe two cocksP and Qcommunicatewith the chamber O,asshown inFigs. l, 2, and 3. The cock R communicates with a cavity, S,in the lower face'of the cap H.V These three cocks are used to controlthe discharge of the` lubricant in the delivery from the instrument. Bymeans of the pipe and cock L water is introduced into the instrument,either under elastic pressure superiorto that resisting the delivery ofthe oil 4froml the feeding-cocks, or under the hydrostatic effort of acolumn of waterwheu the operating elasticforces are equal, or nearly so.

The operation of mywimprovedroiler is as follows: The screw-plug Dhaving been removed,` the chamber A is filled with oil and the plugreplaced. The glass chamber F is then lled with water. If one ofthefeedingcocks be now slightly opened, oil will be forced by the pressureof wat-er in the induction-pipe L out of the chamber A, through passageK,

and will rise to the top of the glass chamber and may be modified atpleasure, either by thc Q l j y 135,243

A ed not only for continuous feeding, as shown inrFig". 1, butalso forperiodical feeding. The

yonly change required to adapt the device for .periodical feeding is toextend4 the passage J through to the oil-chamber. In order, however,that the apparatus may be used for either purpose, I provide a conicalplug, M,

which is so constructed that the passage K may be made to communicatewith both the chambers F A, or be cut off from the chamber F, in whichlatter case the apparatus is identical with that shown in Fig. 1.

The construction of the plug is as follows:

. It has three sets of openings through it. Those corresponding to thepassages K and L are in the form of a cross, Sothat the passages K and Lareboth open, whether the plug-handle is vertical or crossw-ise. Forcontrolling the-passage J the plug M is furnished with one openingthrough it, on a line with the handle, and

into this opening isaside opening, P, and also a passage through thecenter of the plug longitudinally, connecting the passages J and L.

The operation of the oiler when feeding periodically is as follows: Thescrew-plug D having been removed the chamber A is filled with oil andthe plug replaced. The handle ol' the plug M being placed vertically, asin Fig. 2, cock L is opened and water introduced. into and through the.plug M, and by means 'of the passage J the glass chamber F is filledwith water. By reason of its superior specific gravity the water in theglass chamber will immev diately begin to descend through the passage Jinto the oil-chamber A, displacing an equal volume of oil, which willrise through passage K, ascending,v therefrom in drops, and lill theglass chamber above.- The rapidity with which this transfer will takeplace will depend on the size of the passages employed; but it is noobjection if the transfer should occupy the space of several minutes, asit is only intended that it shall be completed during the intervals ofperiodical feeding. The cock L is left open .Y to admit water to replaceoil ejected in feed-.

ing, and to maintain pressure Within the instrument. of thefeeding-cocks P, Q, or It. If the cock R is opened slightly, oil willpass out and the whole body of oil in the glass chamber will rise, whilewater from pipe L will enter the glass chamber through passage J toreplace the ejected oil. If cock R is now closed and P orQ opened, oilfrom the upper part of the chamber willenter the hollow'bolt at N, and,passing longitudinally through j it into the small chamber O, will bedischarged therefrom by means of the cock P or Q, as the case may be.When the feeding-cocks have been closed the glass chamber will, in ashort time, be found to be again full of oil, the Water it containedhaving descended to the oil chamber. v

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The described method of feeding oil, consisting in delivering the oilfrom the reservoir up through abody of water inclosed in a glasschamber, and discharging the same through the feed-cocks, substantiallyas described. Y

2. Thecombination of an oil-.chamber with a water-chamber, the latterbeing located over the former, and adapted to receive oil fromit,

and deliver the same above-the body of water l inclosed in it,substantially as described.

3. The combination of the chambers A F, passages J K, and plug M withthe inductionpipe I and feeding-cocks, substantially as described.

4'. The drip-pan C provided with the fillingplug D, substantially asdescribed.

The above specificationv of my invention signed by me this 8th day ofAugust, 1872.

' JOHN GATES.- Witnesses:

WM. STEPHENS, TYLER WOODWARD.

Oil may be ejected through either

